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Cannot launch application after installing a hotfix for App-V 5.0 SP2 client

September 29, 2014 - App-V

After applying Hotfix 4 to an App-V 5.0 SP2 client, not a single application could be launched anymore. The hotfix broke the AppV client!

A virtual application could not be launched from package ‘x’ because the App-V Client Service is not running. Start the App-V Client Service and try again.

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To apply Hotfix 4 (HF4) the MSP installer was used (appv_client_kb2956985_x64.msp).

Typical EXE wrapper installers does prerequisite checks (and installs). But as the MSI/MSP was used, these prerequisite checks aren’t executed.

KB2956985 does mention an extra prerequisite, VC++ 2013 Redistributable is necessary since this hotfix!

After installing Microsoft Visual C++ 2013 Redistributable, and rebooting the client, the issue was history.

/Ben